Spring bed-bottom



(No Model.)

B. S. SAMPLE.

' SPRING BED BOTTOM. No. 563,942. Patented July 14, 1896.

E' .1. D I g G d 6 Wow M;

UNITED STATES PATENT IFFIQE.

RICHARD S. SAMPLE, OF HUNTINGTON, IVEST VIRGINIA.

SPRING BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 563,942,'clated July '14, 1896.

' i li ation filed January 9, 1896. Serial No. 574,805. (No model.)

To all whom, it may concern.-

Be it known that I, RICHARD S. SAMPLE, a citizen of the United States, residing at Huntington, in the county of Cabell and State of \Vest Virginia, have invented certain new and useful Improvements in Spring Bed-Bottoms; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to spring-bottoms for beds, and has for its object the production of a spring bed or mattress that will maintain a level surface uppermost for the support of the customary mattresses and bed-covering, and that will not receive a permanent sag in any part from continued use.

My invention consists,essentially,of a frame, ordinarily rectangular, lengthwise of which are attached an upper series of coiled springs adj ustably connected to the end pieces of the frame, crossslats in pairs, one slat above the other, and each pair separated by series of vertical coiled springs suitably attached to each slat, and a lower series of longitudinal coiled springs, of heavier construction than the upper series mentioned above, also adjustably attached to the end pieces of the frame, and each of the lower series of wires formed into the shape of an inverted truss, the horizontal portions of which are attached to the lower member of each pair of slats and serve as the main support of the weight placed upon the bed.

Referring to the accompanying drawings, wherein like letters are employed to designate like parts in the several views, Figure 1 rep resents a top plan view of my invention, showing the frame, slats, and upper series of lengthwise springs and lower truss-springs. Fig. 2 represents a view from the side, the side boards of the frame being omitted to better exhibit the truss-springs and general construction; and Fig. 3 represents a side view of Fig. 1.

Considering Fig. 1, A designates the lefthand end piece of the frame, and 13 marks the right-hand end piece of the frame. Both pieces rest upon blocks a, and pins 1) Z) Z) I) extend downward through the end pieces and blocks attaching them to the side boards 0, as appears also in the third figure.

D represents the upper member of each pair of cross-slats, of which E is the lower member, and F marks one of a series of spiral springs arranged vertically between the pairs of slats and attached to each member in the ordinary manner.

G designates the upper lengthwise coiled springs, and these springs are attached to the end pieces A and B of the frame by staples and pins to be mentioned hereinafter. It will be observed, Fig. 1, that the springs G are placed at regular intervals across the frame, but this arrangement is not essential, and it is within the scope of my invention to vary the intervals. I may conclude to place several, both of the upper springs G and of the truss-springs H, close together at the sides of the frame or near the middle, as may be determined by special orders received for my invention.

The longitudinal spiral springs H are formed, as shown in Fig. 2, into the shape of an inverted truss. Any number of these truss-springs may be employed, situated at intervals across the frame. The intervals may be the same as those chosen for the upper series of springs, or an entirely different interval may be selected for the lower series of the springs H. As ordinarily constructed, however, the trusses fall under the upper springs G directly, and the ends of both upper and lower series of springs run within the same staples g, and are attached to the end pieces by the same pins h. Both the staples and pins may be slightly withdrawn in the case of any overstretched coil, and the same can be tightened in the common way.

While it is not absolutely necessary to do so, my practice has been to fix both upper and truss springs to the adjacent slats by staples i. (See Fig. 1.)

The upper series of springs G will by themselves bear a considerable weight without becoming greatly altered in extent, but the principal reliance in my device is placed upon the truss-springs II, which carry the burden of the pairs of slats and their intermediate springs, and are constructed of heavier wire, rendering them less likely to become overstretched. By providing an upper series of wires G above the slats, the weight of the occupant of the bed is distributed before the pressure reaches the truss-springs, thereby throwing no excess of weight upon any one point or section of the latter. It is this feature of my invention which enables the trusssprings to retain their form under all circumstances and their eficiency as principal supports for the slats and as an aid to the upper series of springs is unimpaired.

I am aware that bed-bottoms have been constructed consisting of longitudinal coiled springs arranged in series, both with and without slats, and I do not claim those features broadly.

Having thus sufficiently described my invention, what I 110w claim, and desire to protect by Letters Patent, is-

The combination in a spring bed-bottom of a frame having end pieces A and 13, a series of independent coiled springs Gr placed horizontally and longitudinally, said coiled springs G forming the upper surface of the bed-bottom, slats placed in pairs one above another, springs arranged between the slats of each pair, coiled supporting-springs ll of greater strength than said springs G and arranged longitudinally at intervals beneath said series of springs, the ends of said springs G and II being detachably fixed upon the up per and outer surfaces of said end pieces, said pairs of slats arranged between said springs G and II and attached to each of them, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

RICHARD S. SAMPLE.

\Vitnesses:

O. J. WILKINsoN, R. L. SUMMERsoN. 

